Don't have a clue either, I'm aware yum-updates been replaced by PackageKit. Its designed not to ask you for root password anyway.
Code:
PackageKit.i386 : System daemon that is a DBUS abstraction layer for package management
PackageKit-cron.i386 : Cron job and related utilities for PackageKit
PackageKit-devel.i386 : Libraries and headers for PackageKit
PackageKit-libs.i386 : Libraries for accessing PackageKit
gnome-packagekit.i386 : GNOME PackageKit Client
udev-packagekit.i386 : Tell PackageKit to install firmware that udev requires
yum-packagekit.i386 : Tell PackageKit to check for updates when yum exits